Substack MCP Server

io.github.marcomoauro/substack-mcp

Manage Substack publishing, subscribers, analytics, reader feeds, comments, and images through MCP.

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Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "substack-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "substack-mcp@1.3.2"
      ],
      "env": {
        "SUBSTACK_PUBLICATION_URL": "<your SUBSTACK_PUBLICATION_URL>",
        "SUBSTACK_SESSION_TOKEN": "<your SUBSTACK_SESSION_TOKEN>",
        "SUBSTACK_USER_ID": "<your SUBSTACK_USER_ID>"
      }
    }
  }
}
Environment variables
  • SUBSTACK_PUBLICATION_URLrequiredFull URL of your Substack publication, including https://
  • SUBSTACK_SESSION_TOKENrequiredsecretValue of the substack.sid or connect.sid cookie from your authenticated Substack session
  • SUBSTACK_USER_IDrequiredNumeric user ID returned by Substack's publication_user request

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
1.3.2
Registry
active
Published
9/3/2026

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